11899465575 has 12 divisors (see below), whose sum is σ = 19673783208. Its totient is φ = 6346381600.

The previous prime is 11899465573. The next prime is 11899465621. The reversal of 11899465575 is 57556499811.

It is a happy number.

It is not a de Polignac number, because 11899465575 - 2¹ = 11899465573 is a prime.

It is a super-2 number, since 2×11899465575² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899465573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79329696 + ... + 79329845.

It is an arithmetic number, because the mean of its divisors is an integer number (1639481934).

Almost surely, 2^11899465575 is an apocalyptic number.

11899465575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11899465575 is a deficient number, since it is larger than the sum of its proper divisors (7774317633).

11899465575 is a wasteful number, since it uses less digits than its factorization.

11899465575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158659554 (or 158659549 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 60.

The spelling of 11899465575 in words is "eleven billion, eight hundred ninety-nine million, four hundred sixty-five thousand, five hundred seventy-five".